Operator Panel (Lcd) Display Service Check - Lexmark Optra Color 45 Service Manual

4080-001

Operator Panel (LCD) Display Service Check

Note: Be sure the operator cable is properly installed at the
controller board (JT6) and at the operator panel. Check the
continuity of the cable and replace if necessary.
Operator panel display blank - printer indicator light OFF,
paperfeed motor turns, carrier moves.
FRU
1 Controller Board
2 Operator Panel
Assembly
Operator panel display blank - printer indicator light ON.
FRU
1 Controller Board
Operator Panel
Assembly
2-12
Service Manual
Action
Verify the voltage at (JT6-2) on the controller
board is approximately +5 V dc. If incorrect,
replace the controller board. If correct, go to step
2.
Verify that the resistance between (JT6-4) and
ground on the controller board is approximately 0
ohms. If incorrect, replace the controller board. If
correct, replace the operator panel assembly.
Action
Verify that the resistance between (JT6-4) and
ground on the controller board is approximately 0
ohms. If incorrect, replace the controller board. If
correct, replace the operator panel assembly.